STI 1200A-HTR Stopper II Heated Enclosure with 4" deep Back Box

Prevent costly false fire alarms and protect critical sensors with the Safety Technology International STI 1200A-HTR Stopper II heated enclosure. This protective cover is engineered for security-conscious facilities that require reliable monitoring without compromising legitimate alarms. The heated enclosure keeps detector heads free of condensation and ice, making it ideal for walk-in freezers and cold-storage areas, while the 4" deep back box delivers robust tamper resistance and secure mounting for long-term physical security.

Constructed from UV-stabilized, transparent polycarbonate (PC), the Stopper II lets surveillance and maintenance teams visually inspect detectors and Stopper Station devices without removing the cover — saving time and reducing service interruptions. Built for indoor and outdoor use, the unit resists dust, grime and impact, supporting continuous monitoring and compliance in industrial, retail, and institutional environments.

Choose the STI 1200A-HTR when you need a proven protective cover that balances false-alarm prevention with operational readiness. Contact your distributor to specify the Stopper II heated enclosure for your next security or fire protection deployment.

• Minimizes false fire alarms while allowing legitimate alerts — reduces nuisance trips and downtime for facilities
• Heated, UV-stabilized enclosure protects detectors in cold environments (ideal for walk-in freezers) and outdoor installations
• 4" deep back box provides secure mounting and tamper resistance for reliable physical security
• Durable, transparent polycarbonate construction lets monitoring and surveillance staff visually inspect devices without removal
• Easy to install and service-ready design that supports Stopper Station devices and simplifies maintenance for security teams